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Round|Natural|GIA

1.50ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6521025685

Certificate GIA 6521025685

Diamond specifications and retailer prices

From $10,103 NZD
$5,694 USD
As of October 31, 2026
Save $12,606 NZD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $22,709 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6521025685. Listed at 18 retailers as of October 30, 2026, with prices from $10,103 to $22,709, a $12,606 spread on the same certified stone. NZ Jewellers lists it at $22,709. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6521025685
Dimensions7.31 × 7.27 × 4.55 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.31 mm7.27 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6521025685
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $12,714 NZD|Low: $9,847 NZD|High: $19,149 NZD|Avg: $12,919 NZD|-0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7$10,103 NZD
Retailer 5$10,264 NZD
Retailer 6$11,352 NZD
Retailer 4$11,354 NZD
Retailer 1$12,714 NZD
Retailer 2$13,971 NZD
Retailer 3$18,921 NZD

40 data points across 7 retailers

18 retailers$10,103 NZD to $22,709 NZD

A
Cheapest Retailer
-
$10,103 NZD
$5,694 USD
A
Retailer 2
-
$10,248 NZD
$5,776 USD
View
A
Retailer 3
-
$10,264 NZD
$5,785 USD
View
A
Retailer 4
-
$10,727 NZD
$6,046 USD
View
B+
Retailer 5
-
$11,352 NZD
$6,398 USD
View
Final sale: no returns
A
Retailer 6
-
$11,354 NZD
$6,399 USD
View
B+
Retailer 7
-
$12,096 NZD
$6,817 USD
View
B+
Retailer 8
-
$12,301 NZD
$6,933 USD
View
B+
Retailer 9
-
$12,489 NZD
$7,039 USD
View
B+
Retailer 10
-
$12,714 NZD
£5,642 GBP
View
B+
Retailer 11
-
$13,431 NZD
$7,570 USD
View
B+
Retailer 12
-
$13,431 NZD
$7,570 USD
View
B+
Retailer 13
-
$13,875 NZD
$7,820 USD
View
B+
Retailer 14
-
$13,971 NZD
€7,499 EUR
View
B+
Retailer 15
-
$14,193 NZD
$7,999 USD
View
Retailer 16
-
$14,961 NZD
$8,432 USD
View
Price last confirmed 9 days ago
B
Retailer 17
-
$18,921 NZD
£8,397 GBP
View
Most Expensive
B
NZ Jewellers
57a3d89b-bc2c-4776-b3ea-1270dab81dc9 · Oct 30
$22,709 NZD
$12,799 USD
View
17 more retailers have this diamond
Prices start from $10,103 NZDSave up to $12,606 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.50ct Round
$10,103 NZD